tools-for-build/arm-softfp-test.c

   1 int main ()
   2 {
   3 /*
   4    The C compiler defines __ARM_PCS_VFP when the hard float ABI is in
   5    use and floats/doubles are passed to and returned from functions
   6    via VFP registers. Otherwise, floats are treated as integers for
   7    the purpose of function calls.
   8
   9    Confusingly, __SOFTFP__ is defined only when software floating
  10    point emulation is used within a function, and doesn't reveal which
  11    function calling convention is used. It will be defined with
  12    -mfloat-abi=soft but not -mfloat-abi=softfp
  13 */
  14 #if defined __arm__ && !defined __ARM_PCS_VFP
  15     return 104;
  16 #else
  17     return 0;
  18 #endif
  19 }